About assistant languages
You know that while attempting to translate the right side of the page offers the message in another language (I think I saw French at least a couple of times). Can this be changed? For example, by the user? In the case of Tuvan, which is certainly not an exception, a lot of users can not translate from English or from French. But they can definitely translate from Russian, which BTW is 93% complete itself. So can we facilitate translators by allowing them to translate from other languages they certainly know? Thanks.
Special:Preferences#mw-prefsection-editing, so-called "assistant languages": the users can add as many languages as they wish.